Airflow generating device, vehicle, and control method

Abstract

The application discloses an air flow generating device, a vehicle and a control method, and aims to solve the technical problem that the effect of vehicle aerodynamic management in the prior art is poor. The air flow generating device is applied to the vehicle, the air flow generating device is suitable to be arranged on the vehicle, and the air flow generating device can generate a first air flow or a second air flow. The first air flow is used for reducing the resistance received by the vehicle, and the second air flow is used for increasing the down pressure of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to airflow generating devices, vehicles, and control methods. Background Technology

[0002] Airflow has a significant impact on vehicles during operation. It not only increases fuel consumption and reduces fuel economy, but also interferes with handling stability, and wind noise severely affects ride comfort. Current technologies do not achieve ideal improvements in vehicle aerodynamics management, resulting in ineffective aerodynamic management. Summary of the Invention

[0003] The purpose of this invention is to provide an airflow generating device, a vehicle, and a control method, aiming to solve the technical problem of poor performance in vehicle aerodynamic management in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] In a first aspect, the present invention provides an airflow generating device applied to a vehicle, the airflow generating device being adapted to be installed in a vehicle, the airflow generating device being capable of generating a first airflow or a second airflow, the first airflow being used to reduce the drag on the vehicle, and the second airflow being used to increase the downforce on the vehicle.

[0006] When the vehicle is in motion, the initial airflow generated by the airflow generator can reduce the resistance experienced by the vehicle, thereby reducing fuel or battery power consumption, improving the vehicle's fuel economy, and allowing the vehicle to travel a longer distance with the same amount of fuel or battery power.

[0007] Alternatively, a second airflow generated by an airflow generator can increase the vehicle's downforce, enhancing the vehicle's grip on the ground when traveling at high speeds or turning, thus greatly improving handling stability.

[0008] Based on this, this application effectively optimizes the interaction between the vehicle and the airflow, significantly improves the ability to suppress the negative effects of airflow, greatly improves the vehicle's performance in terms of economy, handling stability and ride comfort, and solves the technical problem of poor aerodynamic management.

[0009] In some embodiments, the airflow generating device includes at least one vortex generating device, and the first airflow or the second airflow includes a portion of the vortex generated by at least one vortex generating device.

[0010] In some embodiments, the vortex generator has a first state in which it is adapted to generate a first vortex that rotates about the length of the vehicle, the first airflow including a portion of the first vortex flowing downward along the height of the vehicle.

[0011] In some embodiments, the vortex generator has a second state in which it generates a second vortex that rotates about the length of the vehicle, and the second airflow includes a portion of the second vortex that flows upward along the height of the vehicle.

[0012] In some embodiments, the eddy current generator includes a housing and a plurality of blades disposed within the housing and arranged circumferentially along the housing.

[0013] In some embodiments, the eddy current generator includes a drive assembly connected to a plurality of blades, the drive assembly being used to drive the plurality of blades to rotate, thereby switching the eddy current generator between a first state and a second state.

[0014] In some embodiments, the drive assembly includes a rotating component and a drive component, wherein multiple blades are connected to the rotating component in a transmission manner, and the drive component is used to drive the rotating component to rotate, thereby causing the multiple blades to rotate synchronously.

[0015] In some embodiments, the drive assembly further includes a first annular rack disposed on the housing, a second annular rack disposed on the rotating member, and a blade gear disposed on each blade, wherein the blade gear meshes with both the first annular rack and the second annular rack for transmission.

[0016] Secondly, embodiments of this application provide a vehicle that includes the airflow generating device described in the first aspect or any corresponding embodiment.

[0017] In some embodiments, the vehicle includes an airflow generating device according to any of the above-described corresponding embodiments. The airflow generating device includes two vortex generating devices, which are adapted to be disposed at the rear of the vehicle and respectively disposed at both ends of the rear of the vehicle along the width direction. In a first state, the vortex generating devices are adapted to generate a first vortex rotating around the length direction of the vehicle, and the first airflow includes a portion of the first vortex flowing downward along the height direction of the vehicle.

[0018] In the second state, the vortex generator produces a second vortex that rotates around the length of the vehicle, and the second airflow includes a portion of the second vortex that flows upward along the height of the vehicle.

[0019] In some embodiments, in a first state, the first eddy current includes a first sub-eddy current generated by both eddy current generating devices, wherein the rotation directions of the first sub-eddy currents generated by the two eddy current generating devices are opposite.

[0020] In some embodiments, within a field of view from the rear of the vehicle to the front of the vehicle, along the width direction of the vehicle, in a first state, the first sub-vortex generated by the left vortex generator of the two vortex generators rotates clockwise.

[0021] In some embodiments, in the second state, the second vortex includes a second sub-vortex generated by both vortex generators, the second sub-vortices generated by the two vortex generators rotating in opposite directions.

[0022] In some embodiments, within a field of view from the rear of the vehicle to the front of the vehicle, along the width direction of the vehicle, in the second state, the second sub-vortex generated by the left vortex generator of the two vortex generators rotates counterclockwise.

[0023] In some embodiments, the vehicle in this application further includes a duct assembly that extends along the length of the vehicle, with an air inlet on the side of the duct assembly facing the front of the vehicle and an air outlet on the side facing the rear of the vehicle, and an airflow generating device disposed at the air outlet of the duct assembly.

[0024] In some embodiments, the air duct assembly further includes an adjusting member disposed at the air outlet end, the adjusting member being adapted to adjust the air outlet direction at the air outlet end.

[0025] In some embodiments, the vehicle further includes a first rear wheel and a second rear wheel; along the length of the vehicle, the vortex generator is located behind the first rear wheel and / or the second rear wheel.

[0026] Thirdly, this application provides a control method for controlling the airflow generating device of the first aspect or any corresponding embodiment, or the vehicle of the second aspect or any corresponding embodiment, the control method comprising:

[0027] When the first preset condition is met, the airflow generating device is switched to the first state so that the airflow generating device generates the first airflow.

[0028] In some embodiments, the airflow generating device includes at least one vortex generating device;

[0029] Switching the airflow generator to the first state includes:

[0030] Control at least one vortex generator to switch to a first state, such that at least one vortex generator generates a first vortex rotating about the length of the vehicle, the first airflow including a portion of the first vortex flowing downward along the height of the vehicle.

[0031] In some embodiments, the eddy current generator includes a housing and a plurality of blades disposed within the housing, the plurality of blades being arranged circumferentially along the housing;

[0032] Controlling at least one eddy current generator to switch to the first state includes:

[0033] When the vehicle's speed is within a first preset range, multiple blades are controlled to rotate by a first angle relative to the axial direction of the housing along a first direction.

[0034] When the vehicle's speed is within the second preset range, control multiple blades to rotate a second angle relative to the axial direction of the housing along the first direction;

[0035] Among them, the maximum value within the first preset range is less than the minimum value within the second preset range, and the first angle is less than the second angle.

[0036] In some embodiments, the control method further includes:

[0037] When the second preset condition is met, the airflow generating device is switched to the second state so that the airflow generating device generates a second airflow.

[0038] In some embodiments, controlling the airflow generator to switch to a second state includes:

[0039] Control at least one vortex generator to switch to a second state, such that at least one vortex generator generates a second vortex rotating about the length of the vehicle, the second airflow including a portion of the second vortex flowing upward along the height of the vehicle.

[0040] In some embodiments, controlling the airflow generating device to switch to the second state includes:

[0041] When the vehicle's speed is within the third preset range, control multiple blades to rotate a third angle relative to the axial direction of the housing along the second direction.

[0042] When the vehicle's speed is within the fourth preset range, control multiple blades to rotate a fourth angle relative to the axial direction of the housing along the second direction.

[0043] Among them, the first direction is opposite to the second direction, the maximum value in the third preset range is less than the minimum value in the fourth preset range, and the third angle is less than the fourth angle.

[0044] In some embodiments, the airflow generating device or vehicle further includes an input device, and controlling the airflow generating device to switch to a first state or a second state includes:

[0045] When an input signal is received from an input device, multiple blades are controlled to rotate axially relative to the housing to the angle corresponding to the input signal.

[0046] Fourthly, this application provides a controller for controlling the airflow generating device of the first aspect or any corresponding embodiment described above, or the vehicle of the second aspect or any corresponding embodiment described above. The controller is configured to:

[0047] When the first preset condition is met, the airflow generating device is switched to the first state so that the airflow generating device generates the first airflow.

[0048] When the second preset condition is met, the airflow generating device is switched to the second state so that the airflow generating device generates a second airflow.

[0049] Fifthly, this application provides a computer device, which includes a memory and a processor, and the memory and the processor are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the control method described in the third aspect or any of its corresponding embodiments.

[0050] In a sixth aspect, this application provides a computer-readable storage medium storing computer instructions for causing a computer to perform the control method described in the third aspect or any of its corresponding embodiments.

[0051] It should be noted that the technical effects of the implementation methods of aspects two through six can be found in the technical effects of the corresponding implementation methods in aspect one, and will not be repeated here. Attached Figure Description

[0052] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 One of the side views of a vehicle provided in the embodiments of this application;

[0054] Figure 2 This is a second side view of a vehicle provided in an embodiment of this application;

[0055] Figure 3 A third side view of a vehicle provided in an embodiment of this application;

[0056] Figure 4 This is a schematic diagram of gas flow in a vehicle chassis provided in an embodiment of this application;

[0057] Figure 5 This is one of the schematic diagrams of the operation of the gas generating device under low wind resistance conditions provided in the embodiments of this application;

[0058] Figure 6 This is a second schematic diagram of the operation of the gas generating device under low wind resistance conditions provided in the embodiments of this application;

[0059] Figure 7 This is a perspective view of a vehicle provided in an embodiment of this application;

[0060] Figure 8 Another perspective view of a vehicle provided in the embodiments of this application;

[0061] Figure 9 This is one of the schematic diagrams of the operation of the gas generator in the downpressure mode provided in the embodiments of this application;

[0062] Figure 10 This is a second schematic diagram of the operation of the gas generator in the downpressure mode provided in the embodiments of this application;

[0063] Figure 11 This is a schematic diagram of the structure of an eddy current generator provided in an embodiment of this application;

[0064] Figure 12 This is one of the schematic diagrams showing the working state of an eddy current generator provided in the embodiments of this application;

[0065] Figure 13 This is a second schematic diagram of the working state of an eddy current generator provided in the embodiments of this application;

[0066] Figure 14 This is the third schematic diagram of the working state of an eddy current generator provided in the embodiments of this application;

[0067] Figure 15 Fourth schematic diagram of the working state of an eddy current generator provided in the embodiments of this application;

[0068] Figure 16 This is a flowchart of a control method provided in an embodiment of this application.

[0069] Figure label:

[0070] 100. Vehicle; 101. Duct assembly; 1011. Air inlet; 1012. Air outlet; 102. First rear wheel; 103. Second rear wheel; 104. Chassis; 200. Vortex generator; 201. Housing; 2011. First annular rack; 202. Blade; 2021. Blade body; 2022. Connecting column; 2023. Blade gear; 203. Rotating component; 2031. Second annular rack; 204. Drive component; 205. First vortex; 205a / 205b. First sub-vortex; 2051. First airflow; 206. Second vortex; 206a / 206b. Second sub-vortex; 2061. Second airflow. Detailed Implementation

[0071] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0072] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0073] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0074] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0076] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0077] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0078] Vehicles traveling at high speeds in airflow conditions must expend a large amount of energy to overcome air resistance.

[0079] Taking a common driving scenario as an example, when a vehicle reaches a speed of 90 kilometers per hour, air resistance accounts for as much as 55% of all forces that hinder the vehicle's movement, making it a key factor in energy consumption.

[0080] As the airflow under the chassis moves towards the rear of the vehicle, it interacts with airflow from other directions around the vehicle. If the speed and direction of the airflow under the chassis are not well controlled, it may form complex vortices at the rear of the vehicle with airflow from the top and sides, affecting the vehicle's driving performance.

[0081] Based on this, see Figure 1 This application provides a vehicle 100, which can be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, a gasoline vehicle, etc. Vehicle types in this application include, for example, sedans, SUVs, buses, semi-trailers, trucks, container trucks, etc. This application does not specifically limit the types described herein.

[0082] For example, the arrangement direction of the front and rear of the vehicle is the length direction of the vehicle 100, the arrangement direction of the roof and bottom of the vehicle is the height direction of the vehicle 100, and the width direction of the vehicle 100 is perpendicular to the length direction and the height direction of the vehicle 100.

[0083] In some embodiments, this application also provides an airflow generating device applied to the vehicle 100 described above. The airflow generating device can actively intervene in the airflow around the vehicle 100. Unlike the traditional method of guiding airflow solely based on the vehicle's shape, it can generate suitable airflow according to the vehicle 100's driving state (such as speed, road conditions, etc.), changing the air pressure distribution around the vehicle 100, thereby effectively reducing air resistance.

[0084] Turbulence typically occurs when an object moves through a fluid, and factors such as the object's shape and surface texture alter the fluid's flow pattern. It is clear that in the aforementioned process, the airflow generating device in this application functions as a turbulent flow generator. This device can produce suitable airflow at the rear of the vehicle 100, improving wake and vortex conditions. It can guide the originally turbulent wake into a more orderly airflow, reducing energy loss and lowering air resistance.

[0085] In some embodiments, see Figure 1 and combined Figure 2 The vehicle 100 includes a duct assembly 101, which extends along the length of the vehicle 100. The side of the duct assembly 101 facing the front end of the vehicle 100 forms an air inlet end 1011, and the side facing the rear end of the vehicle 100 forms an air outlet end 1012. An airflow generating device is provided at the air outlet end 1012 of the duct assembly 101.

[0086] For example, the air inlet 1011 is located at the front end of the vehicle 100, such as near the front hood water channel.

[0087] It should be noted that the airflow generating device may be located inside the air outlet 1012 of the air duct assembly 101, or it may be located on the outer periphery of the air outlet 1012 of the air duct assembly 101. This application does not limit the location of the airflow generating device.

[0088] During the movement of vehicle 100, relative motion occurs between the air and vehicle 100 to form airflow. The airflow flows from the air inlet 1011 to the air outlet 1012. The airflow generating device changes the direction of this airflow and creates turbulence. Through the turbulence generated by the airflow generating device, the original airflow state around vehicle 100 can be adjusted, and the pressure distribution of the airflow at the rear of the vehicle can be changed, thereby improving the aerodynamic performance of vehicle 100, reducing air resistance, and improving the handling stability of vehicle 100.

[0089] This application uses the example of how the airflow, after being disturbed by the airflow generator, alters the airflow in the chassis 104 at the rear of the vehicle for illustrative purposes. In this application, the airflow generator can interfere with the original flow vortex structure and airflow at the rear of the vehicle.

[0090] Specifically, the air inlet 1011 of the air duct assembly 101 can be an air inlet opened on the vehicle body, and the air inlet can be located around the D-pillar or C-pillar of the vehicle 100. The air outlet 1012 of the air duct assembly 101 can be an air outlet opened on the vehicle body, and the air outlet is located at the rear of the vehicle.

[0091] In addition, the airflow generating device can also be set at other air duct components 101 to play a turbulence role. This application is only used as an example of vehicle 100 to illustrate the specific application and does not constitute a limitation of this application.

[0092] In some embodiments, the distance between the air inlet end 1011 of the air duct assembly 101 and the C-pillar or D-pillar of the vehicle 100 is less than or equal to 100 mm.

[0093] Based on this, when the vehicle 100 is in motion, the flow of air around the vehicle body has a significant impact on wind resistance. By placing the air inlet 1011 of the air duct assembly 101 closer to the C-pillar or D-pillar, the airflow can transition more smoothly from the side of the vehicle body to the rear, reducing airflow separation and the generation of vortices, thereby reducing wind resistance and improving the fuel economy and driving stability of the vehicle 100.

[0094] In some embodiments, see Figure 3 The vehicle 100 also includes a chassis 104, which is located at the bottom of the vehicle 100. The chassis 104 mainly includes a frame, suspension system, transmission system components, steering system, and braking system. During vehicle 100 operation, airflow passes under the chassis 104. When the vehicle 100 is at a low speed, the airflow under the chassis 104 is relatively smooth; as the vehicle speed increases, the speed of the airflow under the chassis 104 also increases.

[0095] Before introducing the airflow generating device in this application, this application will first describe in detail the flowing gas below the chassis 104 of the vehicle 100 and flowing to the rear of the vehicle during the vehicle's movement. It should be noted that during the actual movement of the vehicle 100, due to the irregular motion of gas molecules, the flow direction of the gas is not limited to a single, fixed direction, but exhibits a relatively complex dynamic change. The limitations made in this application regarding various directions are only relative limitations based on the general trend of gas flow, and are not absolutely precise or without deviation.

[0096] For ease of explanation, this application uses three different directions of gas flow at the rear of the vehicle as examples, but it does not mean that the airflow generating device in this application only affects the gas in these three directions.

[0097] See Figure 3 and combined Figure 4 When the flowing gas moves from the chassis 104 of the vehicle 100 towards the rear, at least three paths of gas flow will be formed. The gas flowing along the first path is the gas whose flow direction is the same as the direction of travel of the vehicle 100, that is, along... Figure 6The gas flowing in the S1 direction; the gas flowing along the second path is the gas flowing upwards along the vehicle's 100-degree height direction, that is, along... Figure 6 The gas flowing in the S2 direction; the gas flowing along the third path is the gas flowing in the opposite direction to the direction of travel of vehicle 100, that is, along... Figure 6 Gas flowing in the S3 direction.

[0098] In some embodiments, the airflow generating device of this application is adapted to be disposed on the vehicle 100. The airflow generating device is capable of generating a first airflow 2051 or a second airflow 2061. The first airflow 2051 is used to reduce the resistance experienced by the vehicle 100, and the second airflow 2061 is used to increase the downforce of the vehicle 100.

[0099] The working process of the airflow generating device in this application is described below, taking the first airflow 2051 generated in the first state and the second airflow 2061 generated in the second state as an example.

[0100] In some embodiments, the first airflow 2051 flows downward along the height direction of the vehicle 100. See [link to previous text]. Figure 5 and combined Figure 6 In the first state, the airflow generating device can generate a first airflow 2051 located at the rear side of the vehicle 100 and flowing downward along the height direction of the vehicle 100. The airflow generated by the airflow generating device includes, but is not limited to, the first airflow 2051. The direction of the first airflow 2051 is not limited to flowing downward along the height direction of the vehicle 100. The airflow generating device can also generate gas flowing in other directions. This application is only illustrative of the first airflow 2051 flowing downward along the height direction of the vehicle 100.

[0101] For ease of explanation, the first state of this application, in which vehicle 100 is in a low-drag state, is used as an example. It should be noted that a low-drag state means that the air resistance experienced by vehicle 100 during driving is relatively small, but it is not limited to vehicle 100 being at a low speed. The wind resistance experienced by vehicle 100 is also affected by factors such as exterior design, driving posture, and environment.

[0102] See Figure 5 and combined Figure 6 When the first airflow 2051 flows from top to bottom along the height direction of the vehicle 100, it will interact with the airflow along the vehicle 100. Figure 6 The gas flowing in the S2 direction collides. During this process, due to the impact of the first airflow 2051, the gas originally flowing along... Figure 6 The gas flowing in the S2 direction is obstructed and can no longer flow smoothly along its original path. According to the law of conservation of mass, the total amount of gas in the entire system remains constant during this dynamic process. Therefore, the gas that originally flowed along the S2 direction... Figure 6Once the portion of gas flowing in the S2 direction is obstructed, more gas will inevitably be diverted along the [path / path]. Figure 6 The flow along the S1 direction causes the flow to... Figure 6 The amount of gas flowing in the S1 direction increases significantly. The increase in gas flow means that the thrust generated at the rear of the vehicle will also increase. This thrust can effectively promote the vehicle 100 to continue to move along the original predetermined direction of travel without causing any obstruction to the forward movement of the vehicle 100.

[0103] In other words, through the above changes in the gas, it is easy to see that under the action of the first airflow 2051, during the dynamic process of the vehicle 100 driving with low wind resistance, the gas generating device successfully optimized the airflow field at the rear of the vehicle 100, effectively reducing the wind resistance experienced by the vehicle 100 in the low wind resistance state, and creating more favorable conditions for the energy saving and fast driving of the vehicle 100.

[0104] Based on this, this application further explains the above content by using the airflow generating device as the vortex generating device 200.

[0105] In some embodiments, see Figure 5 and combined Figure 7 The airflow generating device includes at least one vortex generating device 200. The first airflow 2051 includes a portion of the vortex generated by at least one vortex generating device 200. In other words, the vortex generating device has a first state in which the vortex generating device 200 is adapted to generate a first vortex 205 rotating about the length direction of the vehicle 100. The first airflow 2051 includes a portion of the first vortex 205 flowing downward along the height direction of the vehicle 100.

[0106] A vortex is a type of rotational motion of a fluid, characterized by the fluid moving in a circular or near-circular manner around a central axis or a localized region. (In conjunction with this application...) Figure 5 as well as Figure 6 The vortex generator 200 enables the gas at the outlet of the air duct assembly 101 to rotate around the axis of the outlet, thereby generating a first airflow 2051 located at the rear side of the vehicle 100 and flowing downward along the height direction of the vehicle 100.

[0107] By utilizing the mixing effect between the vortex generator 200 and the vortex near the vehicle body, the flow vortex generated by the vehicle body can be weakened, reducing induced drag and effectively achieving drag reduction.

[0108] It should be noted that the vortex generator 200 in this application can be one, two, or more, and this application does not limit this. When there are two or more vortex generators 200, at least two vortex generators 200 are arranged opposite each other and the directions of the first vortex 205 generated by the two vortex generators 200 are different, so that the first airflow 2051 generated by the two vortex generators 200 can converge together. This application uses two vortex generators 200 as an example for illustration.

[0109] In some embodiments, see Figure 8 The number of vortex generators 200 is two. The two vortex generators 200 are suitable to be installed at the rear of the vehicle 100, and respectively at both ends of the rear of the vehicle 100 along the width direction, so as to balance the gas pressure at the rear of the vehicle 100 and enhance the stability of the vehicle during driving.

[0110] In some embodiments, in a first state, the first vortex 205 includes a first sub-vortex generated by both vortex generators 200, the first sub-vortices generated by the two vortex generators 200 rotating in opposite directions, and at this time, the first sub-vortices generated by both vortex generators 200 rotate toward the interior of the vehicle.

[0111] For ease of distinction, this application designates the first sub-vortex generated by the left-side vortex generator 200 as first sub-vortex 205a and the first sub-vortex generated by the right-side vortex generator 200 as first sub-vortex 205b within a viewing angle from the rear of the vehicle 100 towards the front of the vehicle 100. Along the width direction of the vehicle 100, in the first state, the first sub-vortex 205a generated by the left-side vortex generator 200 rotates clockwise, and the first sub-vortex 205b generated by the left-side vortex generator 200 rotates counterclockwise.

[0112] For ease of explanation, this application describes the direction of the vortex in clockwise and counterclockwise directions. However, this is only a simplified way of describing it for the sake of explanation. The direction of the first vortex 205 will depend on many complex factors and is not limited to this simple clockwise and counterclockwise description. Its actual direction may be dynamically adjusted as the driving conditions of the vehicle 100, the surrounding airflow environment, and other conditions change.

[0113] Based on this, see Figure 5Two vortex generators 200 are spaced apart along the width of the vehicle 100. The first sub-vortex 205a rotates clockwise and the first sub-vortex 205b rotates counterclockwise. The first sub-vortex 205a and the first sub-vortex 205b located in the middle of the rear of the vehicle 100 can both form a first airflow 2051. Both types of first airflow 2051 can flow downward along the height of the vehicle 100. That is, the two types of first airflow 2051 can converge into a downward airflow in the middle of the two vortex generators 200 to act on the gas flowing upward under the chassis 104 of the vehicle 100.

[0114] In some embodiments, see Figure 9 and combined Figure 10 The airflow generating device also has a second state and can switch between the first state and the second state. In the second state, the airflow generating device can generate a second airflow 2061 located at the rear side of the vehicle 100 and flowing upward along the height direction of the vehicle 100.

[0115] Taking the airflow generating device in this application as an example, which is the vortex generating device 200, the second airflow 2061 includes a portion of the vortex generated by at least one vortex generating device 200.

[0116] Correspondingly, the eddy current generator 200 has a second state in which the eddy current generator 200 generates a second eddy current 206 that rotates around the length direction of the vehicle 100.

[0117] In other embodiments, the eddy current generator 200 can switch between a first state and a second state to perform different functions on the vehicle 100.

[0118] For ease of explanation, the second state of this application, where vehicle 100 is in downforce mode, is used as an example. Vehicle 100 being in downforce mode means that during driving, when it is necessary to increase the vehicle 100's grip on the ground, the downward pressure of vehicle 100 is increased. This downward pressure can increase the grip between the tires and the ground, thereby improving the handling performance of vehicle 100.

[0119] It should be noted that the downforce mode is not limited to the single state of vehicle 100 traveling at high speed. In many everyday driving scenarios, whenever there are high requirements for the handling stability of vehicle 100, such as driving on slippery roads, when vehicle 100 faces water accumulation or mud, and is prone to skidding; or on winding mountain roads with frequent turns, where vehicle 100 needs to keep close to the road surface to ensure safety, downforce mode can play a crucial role in helping drivers calmly handle various complex road conditions. This application only uses the case of vehicle 100 traveling at high speed as an example for illustration.

[0120] The operation of the airflow generating device in the second state of this application will be described in detail below.

[0121] See Figure 9 , Figure 10 In conjunction with the above Figure 6 When the second airflow 2061 flows upward along the height direction of the vehicle 100, it will interact with the airflow along the height direction of the vehicle 100. Figure 6 The gases flowing in the S2 direction combine, and during this process, the second gas flow 2061, with its own kinetic energy and flow characteristics, can influence the flow along the S2 direction. Figure 6 The gas flowing in the S2 direction exerts a significant driving force, causing the gas along the S2 direction to... Figure 6 The gas flow velocity in the S2 direction is significantly increased. As a result, the gas beneath the chassis 104 of the vehicle 100 also flows rapidly under the influence of this accelerated airflow. According to basic principles of fluid mechanics (such as Bernoulli's principle), the increased gas velocity inevitably leads to a decrease in air pressure in the area where the gas flows. Therefore, the air pressure beneath the chassis 104 of the vehicle 100 decreases, creating a significant pressure difference with the relatively higher air pressure above the vehicle 100. This pressure difference effectively increases the adhesion between the vehicle 100 and the ground, thereby enhancing the stability of the vehicle 100 during operation.

[0122] In some embodiments, see Figure 9 and combined Figure 5 In the second state, the vortex generator 200 is used to generate a second vortex 206 rotating around the length direction of the vehicle 100. In the second state, the second vortex 206 includes a second sub-vortex generated by both vortex generators 200. The rotation directions of the second sub-vortices generated by the two vortex generators 200 are opposite, so as to form a second airflow 2061 flowing upward along the vehicle height direction at the middle position of the two vortex generators 200.

[0123] In some embodiments, see Figure 9 and combined Figure 5 Within the field of view from the rear of vehicle 100 to the front of vehicle 100, along the width direction of vehicle 100, in the second state, the second sub-vortex generated by the left vortex generator 200 of the two vortex generators 200 rotates counterclockwise, and the second sub-vortex generated by the right vortex generator 200 of the two vortex generators 200 rotates clockwise.

[0124] For ease of distinction, this application designates the second sub-vortex generated by the left-side vortex generator 200 as second sub-vortex 206a and the second sub-vortex generated by the right-side vortex generator 200 as second sub-vortex 206b within a viewing angle from the rear of the vehicle 100 towards the front of the vehicle 100. Along the width direction of the vehicle 100, in the first state, the second sub-vortex 206a generated by the left-side vortex generator 200 rotates counterclockwise, and the second sub-vortex 206b generated by the right-side vortex generator 200 rotates clockwise.

[0125] Based on this, the second airflow 2061 includes a portion of the second vortex 206 flowing upward along the height direction of the vehicle 100. In other words, the second sub-vortex 206a and the second sub-vortex 206b converge in the middle of the two vortex generating devices 200 to form the second airflow 2061 flowing upward along the height direction of the vehicle.

[0126] It should be noted that, in the first state, the first vortex 205 (including the first sub-vortex 205a and the second sub-vortex 205b) exhibits an "inward" rotational trend compared to the second vortex 206 (including the second sub-vortex 206a and the second sub-vortex 206b) in the second state. That is, the rotational directions of the first sub-vortex 205a and the first sub-vortex 205b are coordinated, causing the rotational trajectory of the entire first vortex 205 to converge towards the vehicle's central axis. In the second state, the second vortex 206, generated by the same or related vortex generating device, consists of the second sub-vortex 206a and the second sub-vortex 206b. Unlike the first vortex 205, the second vortex 206 exhibits an "outward" rotational trend. That is, the rotational directions of the second sub-vortex 206a and the second sub-vortex 206b work together, causing the rotational trajectory of the entire second vortex 206 to spread away from the vehicle's central axis.

[0127] The second vortex 206 is generated in the same way as the first vortex 205, and will not be described again in this application. For a vortex generator 200, by changing the direction of the vortex generated by the vortex generator 200, a second airflow 2061 with the opposite direction to the first airflow 2051 can be generated at the position where the first airflow 2051 is generated. The first airflow 2051 and the second airflow 2061 with different directions can have completely different effects on the operating requirements of the vehicle 100, providing diverse possibilities for the performance optimization of the vehicle 100.

[0128] For example, the first airflow 2051 along the Figure 6The gas flowing in the S2 direction acts as a blockage, disrupting its original flow path and altering the airflow distribution. The second airflow 2061 acts along... Figure 6 The gas flowing in the S2 direction acts as a propulsion force, increasing its velocity and making the flow smoother.

[0129] Based on this, the vortex generator 200 can meet the needs of the vehicle 100 in different driving processes. On the one hand, the first airflow 2051 generated by the first vortex 205 can more precisely regulate the airflow distribution around the vehicle 100, especially in key areas such as the rear of the vehicle and under the chassis 104, reducing turbulence, lowering wind resistance, and improving the fuel economy of the vehicle 100. On the other hand, the second airflow 2061 generated by the second vortex 206 can enhance the stability of the vehicle 100 under conditions such as high-speed driving and cornering, optimize the adhesion between the tires and the ground, and ensure the safety and comfort of the driver and passengers.

[0130] In some embodiments, the air duct assembly 101 further includes an adjusting member disposed at the air outlet 1012. The adjusting member is adapted to adjust the air outlet direction of the air outlet 1012 to further adjust the direction of the airflow generated by the airflow generating device, thereby playing a better role in regulating the airflow at the rear of the vehicle 100.

[0131] It should be noted that the adjusting component can adjust the air outlet direction of the air outlet 1012 left and right, and can also adjust the air outlet direction of the air outlet 1012 up and down. This application does not limit this.

[0132] In some embodiments, see Figure 11 The vortex generator 200 includes a housing 201 and multiple blades 202. The multiple blades 202 are disposed inside the housing 201 and arranged circumferentially along the housing 201. The housing 201 serves to enclose and fix the blades 202, and also provides a certain space restriction for the flow of internal airflow.

[0133] For example, the housing 201 can be a duct of the air duct assembly 101, or the housing 201 can be a hollow housing located at the rear of the vehicle and connected to the air outlet 1012 of the air duct assembly 101. This application does not limit the scope of the application.

[0134] The eddy current generator 200 also includes a drive assembly connected to a plurality of blades 202. The drive assembly is used to drive the plurality of blades 202 to rotate so that the eddy current generator 200 switches between a first state and a second state.

[0135] It should be noted that, in order to ensure the stability of the first airflow 2051 or the second airflow 2061, the rotation direction of the multiple blades 202 in this application is the same.

[0136] Based on this, see Figure 11 and combined Figure 9 as well as Figure 5 As the drive assembly drives the blades 202 to rotate, the airflow will begin to form a first vortex 205 or a second vortex 206 under the constraint of the pipe-shaped housing 201, so that the vortex generator 200 switches between the first state and the second state, thereby using these vortices to influence the subsequent airflow direction of the entire duct system and the effect on the external environment.

[0137] In some embodiments, see Figure 11 The drive assembly includes a rotating component 203 and a drive component 204. Multiple blades 202 are connected to the rotating component 203 in a transmission manner. The drive component 204 is used to drive the rotating component 203 to rotate, so as to drive the multiple blades 202 to rotate synchronously.

[0138] It should be noted that the eddy current device in this application can be any device capable of generating eddy currents, and the following embodiments in this application do not constitute a limitation on the implementation of this application.

[0139] For example, the drive element 204 can be a motor. The entire eddy current generator 200 can be controlled by a motor to control the direction of the blades 202, without the need for additional energy drive, which is highly practical.

[0140] When the driving component 204 drives the rotating component 203 to rotate, the rotating component 203 transmits power to multiple blades 202. The multiple blades 202 rotate in the same direction to form a first vortex 205 or a second vortex 206 to meet the needs of the vehicle 100 during driving, thereby ensuring the stability of the vehicle 100 during driving.

[0141] Of course, the drive assembly may also include multiple drive elements 204, with the output end of one drive element 204 connected to one blade 202 to enable the blade 202 to rotate. This application is merely illustrative; under the influence of different needs, cost budgets, technical levels, and application fields, those skilled in the art may employ other technologies to drive the blade 202 to rotate and generate eddy currents, and this application does not limit such applications.

[0142] For example, the rotating member 203 is connected to the plurality of blades 202 via a toothed drive.

[0143] In some embodiments, see Figure 11The drive assembly also includes a first annular rack 2011 disposed on the housing 201, a second annular rack 2031 disposed on the rotating member 203, and a blade gear 2023 disposed on each blade 202. The blade gear 2023 meshes with both the first annular rack 2011 and the second annular rack 2031 for transmission. The first annular rack 2011 is fixedly connected to the housing 201.

[0144] The blade 202 includes a connecting post 2022 and a blade body. The connecting post 2022 is fixedly connected to the blade gear 2023 of each blade 202, and the connecting post 2022 and the blade gear 2023 of each blade 202 are rotatably connected to the housing 201. In this way, during the rotation of the second annular rack 2031, power can be transmitted to the blade gear 2023 of each blade 202.

[0145] This application uses the driving component 204 as an example of a motor. The output shaft of the motor is connected to a driving gear, which is the rotating component 203 in this application. When the motor starts, the output shaft of the motor drives the driving gear to rotate. The driving gear meshes with the second annular rack 2031 to drive the second annular rack 2031 to rotate.

[0146] The blade gear 2023 of each blade 202 is disposed between the first annular rack 2011 and the second annular rack 2031. The blade gear 2023 of each blade 202 is clamped by the first annular rack 2011 and the second annular rack 2031. During the rotation of the second annular rack 2031, the blade gear 2023 of each blade 202 can rotate.

[0147] During the transmission process described above, the first annular rack 2011 restricts the displacement of the blade gear 2023 in the direction perpendicular to the plane of the first annular rack 2011, ensuring that the blade gear 2023 of each blade 202 is always precisely meshed between the first annular rack 2011 and the second annular rack 2031, thus maintaining the stability and accuracy of the transmission.

[0148] On the other hand, since the blade gear 2023 is also meshed with the first ring rack 2011, during the process of the blade gear 2023 of each blade 202 revolving with the second ring rack 2031, the relative movement between the blade gear 2023 of each blade 202 and the first ring rack 2011 causes the blade gear 2023 of each blade 202 to rotate, thereby driving the connecting column 2022 to rotate, and thus driving the blade 202 body to rotate.

[0149] In the above process, when the eddy current generated by the eddy current generator 200 needs to switch between the first eddy current 205 and the second eddy current 206, it is only necessary to change the rotation direction of the motor's output shaft. In this application, by simply adjusting the rotation direction of the output shaft of the motor, the power source, the state of the eddy current generated by the entire eddy current generator 200 can be easily changed, realizing the switching from the first eddy current 205 to the second eddy current 206 or from the second eddy current 206 to the first eddy current 205, thus meeting the differentiated needs of eddy currents in different vehicle 100 driving scenarios.

[0150] In some embodiments, see Figure 8 and combined Figure 9 The vehicle 100 in this application also includes a first rear wheel 102 and a second rear wheel 103; along the length direction of the vehicle 100, the eddy current generating device 200 is located behind the first rear wheel 102 and / or the second rear wheel 103.

[0151] The airflow generating device includes at least one vortex generating device 200; in a first state, the vortex generating device 200 is used to generate a first vortex 205 rotating about the length of the vehicle 100, a portion of the first vortex 205 being located at the rear side of the vehicle 100 and flowing downward along the height direction of the vehicle 100, the portion of the first vortex 205 located at the rear side of the vehicle 100 forming a first airflow 2051. Along the length of the vehicle 100, the vortex generating device 200 is located behind the first rear wheel 102 or the second rear wheel 103.

[0152] Based on this, turbulence is easily generated at the rear of the vehicle 100 during its movement. When the vortex generator 200 generates a first vortex 205, the first airflow 2051 of the first vortex 205 flows downward along the height direction of the vehicle 100, which can meet the driving requirements of the vehicle 100 in a low-drag state. When the vortex generator 200 generates a second vortex 206, the second airflow 2061 of the second vortex 206 flows upward along the height direction of the vehicle 100, which can meet the driving requirements of the vehicle 100 in downforce mode. For the specific process, please refer to the above description, which will not be repeated here.

[0153] In some embodiments, see Figure 8 and combined Figure 9 The number of vortex generators 200 is two. The two vortex generators 200 are adapted to be respectively installed at both ends of the width direction of the rear of the vehicle 100. In the first state, the first vortex 205 generated by the two vortex generators 200 are in opposite directions, so that the first airflow 2051 generated by the two vortex generators 200 converges in the same direction, and can work together to affect the airflow of the chassis 104 of the vehicle 100.

[0154] Along the length of the vehicle 100, one vortex generator 200 is located behind the first rear wheel 102, and another vortex generator 200 is located behind the second rear wheel 103. The first and second rear wheels 102 and 103 do not generate significant airflow. In other words, the vortex generator 200 does not occupy the space required for the first airflow 2051 to function, thus not interfering with the specific space needed for the first airflow 2051 to operate. This allows the first airflow 2051 generated by the vortex generator 200 to better influence the upward-flowing air under the chassis 104 of the vehicle 100. This enhances the stability of the vehicle 100 at high speeds, reduces the drag coefficient, and provides the driver with a superior handling experience.

[0155] In some embodiments, this application also provides a control method that can be used to control the eddy current generator 200 or the vehicle 100 described above.

[0156] The subject executing this method can be the vehicle 100 controller, or various device modules in the vehicle 100 controller, such as integrated circuits or chips. This application embodiment does not specifically limit this.

[0157] See Figure 16 In some embodiments, the control method of this application includes:

[0158] S100, Mode Selection.

[0159] In some embodiments, mode selection includes the vehicle meeting a first preset condition or the vehicle meeting a second preset condition.

[0160] S201. When the first preset condition is met, the airflow generating device is controlled to switch to the first state so that the airflow generating device generates the first airflow 2051.

[0161] For example, the first preset condition may be that the vehicle 100 is in a low-drag state according to the needs of the driver and passengers.

[0162] Based on this, the operating state of the eddy current generator 200 in this application can be adaptively changed according to the driver's selection, which can reduce fuel or battery power consumption, improve the driving economy of the vehicle 100, and allow the vehicle 100 to travel a longer distance with the same amount of fuel or battery power.

[0163] In some embodiments, the airflow generating device includes at least one vortex generating device 200;

[0164] Switching the airflow generator to the first state includes:

[0165] Control at least one vortex generator 200 to switch to a first state so that at least one vortex generator 200 generates a first vortex 205 rotating about the length direction of the vehicle 100, the first airflow 2051 including a portion of the first vortex 205 flowing downward along the height direction of the vehicle 100.

[0166] As mentioned above, under the action of the first airflow 2051, the airflow at the rear of the vehicle 100 can be converted into the vehicle 100's own propulsion, thereby reducing the wind resistance during the vehicle 100's driving process and improving the riding experience of the driver and passengers.

[0167] In some embodiments, see Figure 16 When the eddy current generator 200 in this application includes a housing 201 and a plurality of blades 202 disposed within the housing 201, the plurality of blades 202 are arranged circumferentially along the housing 201. The control method of this application for switching at least one eddy current generator 200 to a first state includes:

[0168] When the vehicle 100 is traveling at a speed within a first preset range, the multiple blades 202 are controlled to rotate by a first angle relative to the axial direction of the housing 201 along a first direction.

[0169] When the vehicle 100 is traveling at a speed within a second preset range, the multiple blades 202 are controlled to rotate by a second angle relative to the axial direction of the housing 201 in a first direction.

[0170] Among them, the maximum value within the first preset range is less than the minimum value within the second preset range, and the first angle is less than the second angle.

[0171] For ease of explanation, this application provides illustrative examples of the first preset range, second preset range, first angle, and second angle, but these do not constitute a limitation of the application. The first preset range is greater than or equal to 0 km / h and less than or equal to 80 km / h; the second preset range is greater than 80 km / h and less than or equal to 120 km / h. The first angle is 15°, and the second angle is 30°.

[0172] The second angle can be either the angle at which the blade 202 continues to rotate based on the first angle, or the angle at which the blade 202 rotates based on the initial position.

[0173] When the vehicle 100's speed is within a first preset range, that is, a low-speed range commonly seen in daily driving, which is greater than or equal to 0 km / h and less than or equal to 80 km / h, the vehicle 100 control system will precisely instruct and control multiple blades 202 to rotate 15° relative to the axial direction of the housing 201 along a first angle. At this time, using a relatively gentle airflow force, the airflow under the chassis 104 and at the rear of the vehicle 100 is initially regulated, reducing wind resistance that still exists due to low-speed driving, while avoiding unnecessary energy consumption due to excessive airflow disturbance.

[0174] Upon entering the second preset range, in the medium-to-high speed range where the vehicle 100's speed is greater than 80 km / h and less than or equal to 120 km / h, the system quickly switches the control mode, causing the blade 202 to rotate relative to the housing 201 along the first direction to a second angle of 30°. Whether the second angle is a continuation of the rotation based on the first angle or a direct rotation from the initial position, the blade 202 can enhance the vortex generated within the corresponding air duct of the air duct assembly 101. In other words, in the first state, after the blade 202 rotates relative to the housing 201 along the first direction to a second angle of 30°, the generated first airflow 2051 can further reduce the wind resistance experienced by the vehicle 100 during driving.

[0175] Please see Figure 12 as well as Figure 13 , Figure 12 as well as Figure 13 This is a schematic diagram of the blade 202 in its initial position (i.e., the blade extends along the axis of the housing 201) from different perspectives, at which point the gas generator is not operating.

[0176] Please see Figure 14 as well as Figure 15 , Figure 12 as well as Figure 13 This is a schematic diagram from different angles after the blade 202 rotates. At this time, the gas generating device generates vortexes by controlling the rotation of the blade 202.

[0177] In some embodiments, see Figure 16 Controlling at least one eddy current generator 200 to switch to the first state further includes:

[0178] When the vehicle 100 travels at a speed within a fifth preset range, the multiple blades 202 are controlled to rotate by a fifth angle relative to the axial direction of the housing 201 in the first direction.

[0179] Among them, the maximum value in the second preset range is less than the minimum value in the fifth preset range, and the second angle is less than the fifth angle.

[0180] For example, the fifth preset range is greater than 120 km / h, and the fifth angle is 45 degrees.

[0181] Based on this, this application can further enhance the vortex effect generated by the vortex generator 200 when the vehicle 100 is traveling at high speed.

[0182] In some embodiments, see Figure 16 The control methods also include:

[0183] S202. When the second preset condition is met, the airflow generating device is controlled to switch to the second state so that the airflow generating device generates a second airflow 2061.

[0184] Based on this, this application can further flexibly control the working state of the airflow generating device according to the needs of vehicle 100.

[0185] In some embodiments, switching the control airflow generating device to the second state in the control method of this application includes:

[0186] At least one vortex generator 200 is switched to a second state to generate a second vortex 206 rotating about the length of the vehicle 100. The second airflow 2061 includes a portion of the second vortex 206 flowing upward along the height of the vehicle 100 to increase the downforce of the vehicle 100.

[0187] In some embodiments, see Figure 16 The control method of this application, which switches the control airflow generating device to the second state, includes:

[0188] When the vehicle 100 is traveling at a speed within a third preset range, the multiple blades 202 are controlled to rotate relative to the axial direction of the housing 201 by a third angle in the second direction.

[0189] When the vehicle 100 travels at a speed within a fourth preset range, multiple blades 202 are controlled to rotate by a fourth angle relative to the axial direction of the housing 201 in the second direction.

[0190] Among them, the first direction is opposite to the second direction, the maximum value in the third preset range is less than the minimum value in the fourth preset range, and the third angle is less than the fourth angle.

[0191] For ease of explanation, this application uses the example of the third preset range being the same as the first preset range and the fourth preset range being the same as the second preset range. Of course, the third preset range and the first preset range, and the fourth preset range and the second preset range may also be different, and this application does not limit this.

[0192] Based on this, this application enables flexible adjustment of the airflow generating device in the second state, enhancing the handling performance of the vehicle 100 under various operating conditions and further improving the overall performance of the vehicle 100 and the driving experience of the driver and passengers.

[0193] In some embodiments, see Figure 16 Controlling at least one eddy current generator 200 to switch to the second state also includes:

[0194] When the vehicle 100 travels at a speed within a sixth preset range, the multiple blades 202 are controlled to rotate by a sixth angle relative to the axial direction of the housing 201 in the second direction.

[0195] Among them, the maximum value in the fourth preset range is less than the minimum value in the sixth preset range, and the fourth angle is less than the sixth angle.

[0196] Correspondingly, the sixth preset range and the fourth angle can be consistent with the fifth preset range and the fifth angle.

[0197] In some embodiments, the airflow generating device or the vehicle 100 further includes an input device, and controlling the airflow generating device to switch to a first state or a second state includes:

[0198] When an input signal is received from an input device, multiple blades 202 are controlled to rotate axially relative to the housing 201 to the angle corresponding to the input signal, so as to regulate the airflow at the rear of the vehicle 100.

[0199] For example, the input device can be a human-computer interaction device, such as an in-vehicle display screen.

[0200] Based on this, drivers and passengers can select whether the airflow generator is in the first or second state on the in-vehicle display screen to suit their different travel needs.

[0201] Furthermore, the vehicle 100 in this application also includes an on-board sensor. In any of the above-mentioned feasible implementations, the on-board sensor can transmit the sensed vehicle speed to the controller, and the controller determines the range of the vehicle speed in order to adjust the rotation angle of the blade 202.

[0202] The driver and passengers can manually control the working mode of the airflow generator, or the controller can control the working mode of the airflow generator based on the vehicle speed sensed by the vehicle sensors. This application can provide both manual and automatic modes for the driver and passengers to choose from.

[0203] In addition, it should be noted that in order to ensure the stability of vehicle 100, this application also includes a protection mode. When the driving speed of vehicle 100 is greater than 270km / h, the manual mode in this application cannot be activated to avoid potential risks caused by human error or improper operation, and to ensure the driving safety of vehicle 100.

[0204] In some embodiments, this application further includes a controller for controlling any of the aforementioned airflow generating devices or vehicles. The controller is configured to:

[0205] When the first preset condition is met, the controller controls the airflow generator to switch to the first state so that the airflow generator produces the first airflow.

[0206] When the second preset condition is met, the controller controls the airflow generator to switch to the second state so that the airflow generator produces a second airflow.

[0207] Based on this, the present application realizes automatic control of the airflow generating device. In addition, the controller can also be configured to control the airflow generating device or the vehicle to perform any of the steps in the above control method.

[0208] In some embodiments, this application provides a computer device, which includes a memory and a processor, and the memory and the processor are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the control method described above.

[0209] The processor can be a central processing unit, a network processor, or a combination thereof. The processor may further include hardware chips. These hardware chips can be application-specific integrated circuits (ASICs), programmable logic devices (PLDs), or combinations thereof. The programmable logic devices can be complex programmable logic devices (CLPs), field-programmable gate arrays (FPGAs), general-purpose array logic (GDAs), or any combination thereof.

[0210] The memory stores instructions executable by at least one processor to cause the at least one processor to perform the method shown in the above embodiments.

[0211] The memory may include a stored program area and a stored data area, wherein the stored program area may store the operating system and application programs required for at least one function; the stored data area may store data created based on the use of the computer device, etc. Furthermore, the memory may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory may optionally include memory remotely located relative to the processor, which can be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0212] The memory may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory may also include a combination of the above types of memory.

[0213] In some embodiments, this application also provides a computer-readable storage medium storing computer instructions for causing a computer to perform the control method described above.

[0214] The methods described above according to embodiments of the present invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code originally stored on a remote storage medium or a non-transitory machine-readable storage medium and subsequently stored on a local storage medium after being downloaded via a network. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that a computer, processor, microprocessor controller, or programmable hardware includes storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0215] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An airflow generating device, applied to a vehicle (100), characterized in that, The airflow generating device is adapted to be disposed at the rear of the vehicle (100). The airflow generating device is capable of generating a first airflow (2051) or a second airflow (2061). The first airflow (2051) is used to increase the total amount of gas flowing toward the vehicle (100) from the rear of the vehicle, so as to reduce the resistance experienced by the vehicle (100). The second airflow (2061) is used to accelerate the flow speed of the gas flowing upward at the rear of the vehicle (100), so as to increase the downforce of the vehicle (100). The airflow generating device is adapted to generate a turbulent effect on the airflow between the air and the vehicle (100) by generating the first airflow (2051) or the second airflow (2061) at the rear of the vehicle (100).

2. The airflow generating device according to claim 1, characterized in that, The airflow generating device includes at least one vortex generating device (200), and the first airflow (2051) or the second airflow (2061) includes a portion of the vortex generated by the at least one vortex generating device (200).

3. The airflow generating device according to claim 2, characterized in that, The vortex generator (200) has a first state in which the vortex generator (200) is adapted to generate a first vortex (205) rotating about the length direction of the vehicle (100), the first airflow (2051) including a portion of the first vortex (205) flowing downward along the height direction of the vehicle (100).

4. The airflow generating device according to claim 2, characterized in that, The vortex generator (200) has a second state in which the vortex generator (200) generates a second vortex (206) rotating around the length direction of the vehicle (100), the second airflow (2061) including a portion of the second vortex (206) flowing upward along the height direction of the vehicle (100).

5. The airflow generating device according to any one of claims 2-4, characterized in that, The eddy current generator (200) includes: Shell (201); Multiple blades (202) are disposed within the housing (201) and arranged circumferentially along the housing (201).

6. The airflow generating device according to claim 5, characterized in that, The eddy current generator (200) further includes: A drive assembly connected to the plurality of blades (202) is provided to drive the plurality of blades (202) to rotate so that the vortex generator (200) switches between a first state and a second state.

7. The airflow generating device according to claim 6, characterized in that, The drive assembly is also used to drive the blade (202) to rotate to multiple angles in the first state or the second state.

8. The airflow generating device according to claim 6, characterized in that, The drive assembly includes a rotating component (203) and a drive component (204). The plurality of blades (202) are all connected to the rotating component (203) in a transmission manner. The drive component (204) is used to drive the rotating component (203) to rotate, so as to drive the plurality of blades (202) to rotate synchronously.

9. The airflow generating device according to claim 8, characterized in that, The drive assembly further includes a first annular rack (2011) disposed on the housing (201), a second annular rack (2031) disposed on the rotating member (203), and a blade gear (2021) disposed on each blade (202). The blade gear (2021) meshes with both the first annular rack (2011) and the second annular rack (2031) for transmission.

10. A vehicle (100), characterized in that, include: At least one airflow generating device according to any one of claims 1-9.

11. The vehicle (100) according to claim 10, characterized in that, The airflow generating device includes two vortex generating devices (200), and the two vortex generating devices (200) are adapted to be disposed at the rear of the vehicle (100); In a first state, the vortex generator (200) is adapted to generate a first vortex (205) rotating about the length direction of the vehicle (100), the first airflow (2051) including a portion of the first vortex (205) flowing downward along the height direction of the vehicle (100). In the second state, the vortex generator (200) generates a second vortex (206) that rotates around the length direction of the vehicle (100), and the second airflow (2061) includes a portion of the second vortex (206) that flows upward along the height direction of the vehicle (100).

12. The vehicle (100) according to claim 11, characterized in that, Two vortex generators (200) are respectively disposed at both ends of the rear of the vehicle (100) along the width direction. In the first state, the first vortex (205) includes a first sub-vortex generated by both vortex generators (200), and the rotation directions of the first sub-vortex generated by the two vortex generators (200) are opposite.

13. The vehicle (100) according to claim 12, characterized in that, Within the field of view from the rear of the vehicle (100) to the front of the vehicle (100), along the width direction of the vehicle (100), in the first state, the first sub-vortex generated by the left vortex generator (200) of the two vortex generators (200) rotates clockwise.

14. The vehicle (100) according to claim 11, characterized in that, Two vortex generators (200) are respectively disposed at both ends of the rear of the vehicle (100) along the width direction. In the second state, the second vortex (206) includes a second sub-vortex generated by both vortex generators (200), and the rotation directions of the second sub-vortex generated by the two vortex generators (200) are opposite.

15. The vehicle (100) according to claim 14, characterized in that, Within the field of view from the rear of the vehicle (100) to the front of the vehicle (100), along the width direction of the vehicle (100), in the second state, the second sub-vortex generated by the left vortex generator (200) of the two vortex generators (200) rotates counterclockwise.

16. The vehicle (100) according to claim 10, characterized in that, Also includes: A duct assembly (101) extends along the length of the vehicle (100), with an air inlet (1011) on the side facing the front of the vehicle (100) and an air outlet (1012) on the side facing the rear of the vehicle (100). The airflow generating device is located at the air outlet (1012) of the duct assembly (101).

17. The vehicle (100) according to claim 16, characterized in that, The air duct assembly (101) also includes: An adjusting member is provided at the air outlet (1012) and is adapted to adjust the air outlet direction of the air outlet (1012).

18. The vehicle (100) according to claim 11, characterized in that, It also includes a first rear wheel (102) and a second rear wheel (103); along the length of the vehicle (100), the vortex generator (200) is located behind the first rear wheel (102) and / or the second rear wheel (103).

19. A control method, characterized in that, The control method for controlling the airflow generating device according to any one of claims 1-9 or the vehicle (100) according to any one of claims 10-18 includes: When the first preset condition is met, the airflow generating device is controlled to switch to the first state. In the first state, the airflow generating device generates the first airflow (2051).

20. The control method according to claim 19, characterized in that, The airflow generating device includes at least one vortex generating device (200); Controlling the airflow generator to switch to the first state includes: The at least one vortex generator (200) is controlled to switch to the first state so that the at least one vortex generator (200) generates a first vortex (205) rotating about the length direction of the vehicle (100), the first airflow (2051) including a portion of the first vortex (205) flowing downward along the height direction of the vehicle (100).

21. The control method according to claim 20, characterized in that, The eddy current generator (200) includes a housing (201) and a plurality of blades (202) disposed within the housing (201), the plurality of blades (202) being arranged circumferentially along the housing (201); The step of controlling the at least one eddy current generator (200) to switch to the first state includes: When the vehicle (100) travels at a speed within a first preset range, the plurality of blades (202) are controlled to rotate by a first angle relative to the axial direction of the housing (201) along a first direction. When the vehicle (100) travels at a speed within a second preset range, the plurality of blades (202) are controlled to rotate by a second angle relative to the axial direction of the housing (201) along the first direction. Wherein, the maximum value within the first preset range is less than the minimum value within the second preset range, and the first angle is less than the second angle.

22. The control method according to claim 21, characterized in that, The control method further includes: When the second preset condition is met, the airflow generating device is controlled to switch to the second state so that the airflow generating device generates the second airflow (2061).

23. The control method according to claim 22, characterized in that, The airflow generating device includes at least one vortex generating device (200); controlling the airflow generating device to switch to a second state includes: The at least one vortex generator (200) is controlled to switch to a second state so that the at least one vortex generator (200) generates a second vortex (206) rotating about the length direction of the vehicle (100), the second airflow (2061) including a portion of the second vortex (206) flowing upward along the height direction of the vehicle (100).

24. The control method according to claim 22, characterized in that, The vortex generator (200) includes a housing (201) and a plurality of blades (202) disposed within the housing (201), the plurality of blades (202) being arranged circumferentially along the housing (201); controlling the airflow generator to switch to a second state includes: When the vehicle (100) travels at a speed within a third preset range, the plurality of blades (202) are controlled to rotate by a third angle relative to the axial direction of the housing (201) in the second direction. When the vehicle (100) travels at a speed within a fourth preset range, the plurality of blades (202) are controlled to rotate by a fourth angle relative to the axial direction of the housing (201) along the second direction. Wherein, the first direction is opposite to the second direction, the maximum value within the third preset range is less than the minimum value within the fourth preset range, and the third angle is less than the fourth angle.

25. The control method according to claim 19, characterized in that, The airflow generating device or the vehicle (100) further includes an input device, and the control method includes: Upon receiving an input signal from the input device, the airflow generator is controlled to produce a first airflow or a second airflow.

26. The control method according to claim 25, characterized in that, The airflow generating device includes at least one vortex generating device (200), the vortex generating device (200) includes a housing (201) and a plurality of blades (202) disposed in the housing (201), the plurality of blades (202) being arranged circumferentially along the housing (201); The control method further includes: When an input signal is received from the input device, the plurality of blades (202) are controlled to rotate axially relative to the housing (201) to the angle corresponding to the input signal.

27. A controller, characterized in that, For controlling the airflow generating device according to any one of claims 1-9 or the vehicle (100) according to any one of claims 10-18, the controller is configured to: When the first preset condition is met, the airflow generating device is controlled to switch to the first state so that the airflow generating device generates the first airflow (2051); When the second preset condition is met, the airflow generating device is controlled to switch to the second state so that the airflow generating device generates the second airflow (2061).

28. A computer device, characterized in that, include: A memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, the processor executing the computer instructions to perform the control method according to any one of claims 19-26.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the control method according to any one of claims 19-26.

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